WO2021129128A1 - Procédé de charge sans fil de terminal mobile et terminal mobile - Google Patents

Procédé de charge sans fil de terminal mobile et terminal mobile Download PDF

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Publication number
WO2021129128A1
WO2021129128A1 PCT/CN2020/124775 CN2020124775W WO2021129128A1 WO 2021129128 A1 WO2021129128 A1 WO 2021129128A1 CN 2020124775 W CN2020124775 W CN 2020124775W WO 2021129128 A1 WO2021129128 A1 WO 2021129128A1
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WO
WIPO (PCT)
Prior art keywords
mobile terminal
wireless charging
signal
wireless
preset
Prior art date
Application number
PCT/CN2020/124775
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English (en)
Chinese (zh)
Inventor
谭细金
苏丹
孙士友
Original Assignee
华为技术有限公司
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Publication of WO2021129128A1 publication Critical patent/WO2021129128A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the embodiments of the present application relate to the field of communication technology and wireless charging technology, and in particular, to a wireless charging method of a mobile terminal and a mobile terminal.
  • the battery is an indispensable device on the mobile terminal and a tool that can provide power and energy storage for the mobile terminal.
  • the battery of the mobile terminal can store power through charging, and then power the mobile terminal through discharging.
  • mobile terminals can charge batteries in two ways, wired charging and wireless charging.
  • a mobile terminal such as a mobile phone
  • a mobile terminal wirelessly charges another mobile terminal
  • the user needs to manually activate the wireless charging function of the mobile terminal before the mobile terminal can wirelessly charge other mobile terminals.
  • the mobile phone 1 can only wirelessly charge the mobile phone 2 after the mobile phone 1 activates the wireless charging function in response to the user's operation.
  • the current wireless charging scheme cannot realize automatic wireless charging of one mobile terminal for another mobile terminal.
  • the embodiments of the present application provide a wireless charging method for a mobile terminal and a mobile terminal, which can realize automatic wireless charging between mobile terminals.
  • this application provides a wireless charging method for a mobile terminal, which can be applied to a first mobile terminal.
  • the first mobile terminal not only has the function of receiving wireless charging input from other devices through the wireless charging coil, but also has the function of reverse wireless charging.
  • the reverse wireless charging function is a function for the first mobile terminal to wirelessly charge other mobile terminals through the wireless charging coil.
  • the above method may include: the first mobile terminal detects a wireless signal (such as a short-range wireless signal) from the second mobile terminal; the first mobile terminal may determine whether the wireless signal satisfies a preset condition. If the wireless signal meets the preset condition, the first mobile terminal can automatically turn on the above reverse wireless charging function to wirelessly charge the second mobile terminal.
  • a wireless signal such as a short-range wireless signal
  • the foregoing wireless signal satisfies the preset condition may include: the signal strength of the wireless signal is greater than a preset strength threshold; or, the time when the first mobile terminal receives the wireless signal is within a preset time range. From the perspective of the positional relationship between the first mobile terminal and the second mobile terminal, when the distance between the first mobile terminal and the second mobile terminal is less than the preset distance threshold, the first mobile terminal may receive the signal from the second mobile terminal. Only the wireless signal of the terminal can satisfy the preset condition.
  • the second mobile terminal when the user wants to use the first mobile terminal to wirelessly charge the second mobile terminal, the second mobile terminal will be placed around the first mobile terminal (such as on the first mobile terminal) for a long time, so that The distance between the first mobile terminal and the second mobile terminal is less than a preset distance threshold. It can be seen that if the wireless signal meets the preset condition, it means that the user has a need to use the first mobile terminal to wirelessly charge the second mobile terminal. In this case, the first mobile terminal can automatically turn on the above reverse wireless charging function to wirelessly charge the second mobile terminal. In summary, through the method of the present application, automatic wireless charging between mobile terminals can be realized.
  • the above-mentioned wireless signal is a Bluetooth paging signal.
  • the first mobile terminal detecting the wireless signal from the second mobile terminal may include: the first mobile terminal scans the Bluetooth paging signal; after receiving the Bluetooth paging signal from the second mobile terminal, detecting the wireless signal from the second mobile terminal Received signal strength indication (RSSI) of the Bluetooth paging signal.
  • RSSI Received signal strength indication
  • the above-mentioned wireless signal satisfies the preset condition, which may specifically include: the RSSI of the Bluetooth paging signal received from the second mobile terminal by the first mobile terminal is greater than the preset intensity threshold.
  • the RSSI of the Bluetooth paging signal is used to characterize the signal strength of the Bluetooth paging signal received by the first mobile terminal.
  • the RSSI of the Bluetooth paging signal is inversely proportional to the distance between the mobile terminal. The farther the distance, the smaller the RSSI of the Bluetooth paging signal; the closer the distance, the greater the RSSI of the Bluetooth paging signal. Therefore, if the RSSI of the Bluetooth paging signal received by the first mobile terminal from the second mobile terminal is greater than the preset intensity threshold, it means that the distance between the first mobile terminal and the second mobile terminal is relatively close, and the user may want to use the first mobile terminal.
  • the mobile terminal is required for wireless charging of the second mobile terminal. In this case, the first mobile terminal can automatically turn on the above reverse wireless charging function to wirelessly charge the second mobile terminal.
  • the above-mentioned wireless signal is a Bluetooth signal from the second mobile terminal after the first mobile terminal establishes a Bluetooth connection with the second mobile terminal.
  • the first mobile terminal detecting the wireless signal from the second mobile terminal may specifically include: the first mobile terminal receives the Bluetooth signal from the second mobile terminal, and detects the RSSI of the Bluetooth signal from the second mobile terminal.
  • the above-mentioned wireless signal satisfies the preset condition, which may specifically include: the RSSI of the Bluetooth signal received from the second mobile terminal by the first mobile terminal is greater than the preset intensity threshold.
  • the RSSI of the Bluetooth signal received by the first mobile terminal from the second mobile terminal is greater than the preset intensity threshold, it means that the distance between the first mobile terminal and the second mobile terminal is relatively close, and the user There may be a need to use the first mobile terminal to wirelessly charge the second mobile terminal.
  • the first mobile terminal can automatically turn on the above reverse wireless charging function to wirelessly charge the second mobile terminal.
  • the above-mentioned second mobile terminal may send wireless signals (such as broadcasting a Bluetooth paging signal) multiple times. Therefore, the first mobile terminal may receive multiple Bluetooth signals from the second mobile terminal within a period of time. If the first mobile terminal receives the RSSI of the Bluetooth signal from the second mobile terminal within a period of time (such as the first preset duration) and the RSSI is greater than the preset intensity threshold, the user wants to use the first mobile terminal as the second mobile terminal The possibility of wireless charging is higher.
  • the above-mentioned wireless signal satisfies the preset condition, which may include: the RSSI of the wireless signal received from the second mobile terminal within the first preset time period of the first mobile terminal is greater than the preset intensity threshold. In this way, the misjudgment of whether the second mobile terminal is wirelessly charged by the first mobile terminal can be reduced, and the wireless charging efficiency can be improved.
  • the above-mentioned wireless signal satisfies the preset conditions including: The RSSI of the N wireless signals received by the terminal from the second mobile terminal within the first preset time period are all greater than the preset intensity threshold; where N is a preset positive integer.
  • the reason for the first mobile terminal's misjudgment of whether the second mobile terminal is wirelessly charged may be: the distance between the first mobile terminal and the second mobile terminal is relatively short, so that the first mobile terminal is in the first preset
  • the RSSI of 1 or 2 Bluetooth paging signals received from the second mobile terminal within a time period (for example, 2s) is greater than a preset intensity threshold. Then, the distance between the first mobile terminal and the second mobile terminal becomes larger, so that the first mobile terminal cannot receive the Bluetooth paging signal from the second mobile terminal.
  • the first mobile terminal when the RSSI of the N wireless signals received from the second mobile terminal is greater than the preset intensity threshold within the first preset period of time, the first mobile terminal will The reverse wireless charging function can be automatically turned on. In this way, the misjudgment of whether the second mobile terminal is wirelessly charged by the first mobile terminal can be reduced, and the wireless charging efficiency can be improved.
  • the above-mentioned wireless signal is a feedback signal of a near field communication technology (near field communication, NFC) detection signal.
  • the detection of the wireless signal from the second mobile terminal by the first mobile terminal may include: the first mobile terminal periodically sends an NFC detection signal and detects a feedback signal of the NFC detection signal.
  • the wireless signal satisfies the preset condition includes: the first mobile terminal receives the feedback signal within the second preset time period from the sending of the NFC detection signal.
  • the first mobile terminal receives the feedback signal within the second preset period of time since sending the NFC detection signal, it means that the second mobile terminal is relatively close to the first mobile terminal, and the user is using the first mobile terminal as the first mobile terminal. 2.
  • the above-mentioned first mobile terminal periodically sending a short-range wireless communication technology NFC detection signal may include: the first mobile terminal in a bright screen scenario, according to the first preset The NFC detection signal is periodically sent periodically; the first mobile terminal periodically sends the NFC detection signal according to the second preset period when the screen is off. Wherein, the first preset period is less than the second preset period.
  • the NFC antenna of the first mobile terminal and the wireless charging coil of the first mobile terminal are arranged at different positions of the first mobile terminal.
  • the method of the present application further includes: the first mobile terminal sends out a prompt message.
  • the prompt information is used to prompt the user to place the second mobile terminal at the position where the wireless charging coil of the first mobile terminal is located.
  • the NFC antenna and the wireless charging coil are set at different positions of the first mobile terminal, if the second mobile terminal is not placed at the position where the wireless charging coil of the first mobile terminal is located, the first mobile terminal cannot be The second mobile terminal is wirelessly charged.
  • the first mobile terminal sends out the above-mentioned prompt information, which can prompt the user to place the second mobile terminal at the position of the wireless charging coil of the first mobile terminal, so that the efficiency of wireless charging can be improved.
  • the above-mentioned first mobile terminal automatically turns on the reverse wireless charging function to wirelessly charge the second mobile terminal, which may include: if the first mobile terminal determines that there is no The metal object is placed on the wireless charging coil of the first mobile terminal, and the first mobile terminal automatically turns on the reverse wireless charging function to wirelessly charge the second mobile terminal.
  • the alternating electromagnetic field generated by the wireless charging coil of the first mobile terminal causes the metal foreign objects to generate heat. If the metal foreign body generates a lot of heat, it may cause the combustible materials around the metal foreign body to burn, posing a safety hazard. Through this design method, the above-mentioned safety hazards can be eliminated.
  • the above-mentioned first mobile terminal automatically turns on the reverse wireless charging function to wirelessly charge the second mobile terminal, which may include: the first mobile terminal transmits an Internet packet through the wireless charging coil Probe ping message; if the first mobile terminal receives the signal strength message from the second mobile terminal through the wireless charging coil within the third preset time period, the first mobile terminal enters the identification and configuration phase to wait for the reception from the second mobile terminal
  • the configuration message of the terminal is used to indicate the maximum power required by the second mobile terminal for wireless charging; the first mobile terminal receives the configuration message from the second mobile terminal through the wireless charging coil, and configures the first mobile terminal according to the configuration message
  • the output parameters of the wireless charging coil are used to wirelessly charge the second mobile terminal through the wireless charging coil.
  • the method of the present application further includes: the first mobile terminal uses wireless charging of the first mobile terminal
  • the coil receives an identification (ID) message from the second mobile terminal.
  • the ID message includes the vendor ID (VID) of the second mobile terminal and the product serial number; the first mobile terminal judges whether the second mobile terminal is a pre-configured mobile terminal according to the identification ID message; if the second mobile terminal It is a pre-configured mobile terminal.
  • the first mobile terminal wirelessly charges the second mobile terminal through a wireless charging coil.
  • the first mobile terminal can selectively wirelessly charge the pre-configured mobile terminal. In this way, the current consumption of the first mobile terminal can be reduced.
  • an embodiment of the present application provides a mobile terminal, and the mobile terminal is the above-mentioned first mobile terminal.
  • the first mobile terminal includes a wireless charging coil, a wireless communication module, a memory, and one or more processors.
  • the wireless charging coil, wireless communication module, memory and processor are coupled.
  • the above-mentioned wireless charging coil is used to receive wireless charging input from other devices to charge the first mobile terminal.
  • the above-mentioned wireless charging coil is also used to transmit wireless charging signals to other mobile terminals to realize the reverse wireless charging function of the first mobile terminal.
  • the above-mentioned memory is used to store computer program codes.
  • the computer program code includes computer instructions. When the foregoing processor executes the computer instruction, the mobile terminal (ie, the first mobile terminal) executes the method described in the first aspect and any one of its possible design manners.
  • embodiments of the present application provide a chip system, which is applied to a mobile terminal including a wireless charging coil, a wireless communication module, and a memory, such as the mobile terminal described in the second aspect.
  • the chip system includes one or more interface circuits and one or more processors.
  • the interface circuit and the processor are interconnected by wires.
  • the interface circuit is used to receive signals from the memory of the mobile terminal and send the received signals to the processor.
  • the signal may include computer instructions stored in the memory.
  • an embodiment of the present application provides a computer-readable storage medium, which includes computer instructions that, when the computer instructions are executed on a mobile terminal, cause the mobile terminal to perform operations as in the first aspect and its Any one of the possible design methods.
  • embodiments of the present application provide a computer program product, which when the computer program product runs on a computer, causes the computer to execute the method described in the first aspect and any of its possible design methods.
  • the electronic device described in the second aspect and any one of its possible design methods provided above the chip system described in the third aspect, the computer-readable storage medium described in the fourth aspect, and the electronic device described in the fifth aspect
  • the beneficial effects that can be achieved by the computer program product described above please refer to the beneficial effects in the first aspect and any of its possible design methods, which will not be repeated here.
  • FIG. 1 is a schematic diagram of the architecture of a wireless charging system provided by an embodiment of the application
  • 2A is a schematic diagram of a wireless charging terminal interface provided in the prior art
  • 2B is a schematic diagram of a wireless charging principle provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of the hardware structure of a mobile phone provided by an embodiment of the application.
  • 4A is a flowchart of a wireless charging method for a mobile terminal provided by an embodiment of the application.
  • 4B is a flowchart of a wireless charging method for a mobile terminal provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of Bluetooth signal transmission provided by an embodiment of the application.
  • FIG. 6 is a flowchart of another wireless charging method for a mobile terminal according to an embodiment of the application.
  • FIG. 7A is a flowchart of another wireless charging method for a mobile terminal according to an embodiment of the application.
  • FIG. 7B is a schematic diagram of a wireless charging terminal interface provided by an embodiment of the application.
  • FIG. 8 is a flowchart of another wireless charging method for a mobile terminal according to an embodiment of the application.
  • FIG. 9A is a flowchart of another wireless charging method for a mobile terminal according to an embodiment of the application.
  • FIG. 9B is a flowchart of another wireless charging method for a mobile terminal according to an embodiment of the application.
  • FIG. 10 is a flowchart of another wireless charging method for a mobile terminal according to an embodiment of the application.
  • FIG. 11 is a schematic diagram of another wireless charging terminal interface provided by an embodiment of the application.
  • FIG. 12 is a schematic diagram of a waveform of a ping signal provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of a chip system provided by an embodiment of the application.
  • the embodiment of the present application provides a wireless charging method for a mobile terminal, which can be applied in a process of wireless charging for another mobile terminal by one mobile terminal.
  • FIG. 1 shows a schematic structural diagram of a wireless charging system provided by an embodiment of the present application.
  • the wireless charging system 100 may include a first mobile terminal 110 and a second mobile terminal 120. Among them, the first mobile terminal 110 can automatically wirelessly charge the second mobile terminal 120.
  • the wireless charging coil of the first mobile terminal 110 is coupled with the wireless charging coil of the second mobile terminal 120.
  • the first mobile terminal 110 can transmit a wireless charging signal to the second mobile terminal 120 through the wireless charging coil, which is the first 2.
  • the mobile terminal 120 is wirelessly charged.
  • the function of wirelessly charging the second mobile terminal 120 by the first mobile terminal 110 through the wireless charging coil is referred to as the "reverse wireless charging function".
  • the aforementioned first mobile terminal 110 may also receive wireless charging input from other devices through a wireless charging coil.
  • the other device may be a wireless charging base of the first mobile terminal 110; or, the other device may be another mobile terminal that supports wireless charging (such as a third mobile terminal).
  • the aforementioned first mobile terminal 110 may also support wired charging.
  • the wired charging described in the embodiments of the present application means that the charging interface of the first mobile terminal 100 can be connected to a wired charger (also referred to as a power adapter) to receive the charging input of the wired charger.
  • a wired charger also referred to as a power adapter
  • the aforementioned charging interface may be a universal serial bus (USB) interface.
  • the method of the embodiment of the present application is applied to a process in which the first mobile terminal 110 wirelessly charges the second mobile terminal 120.
  • the first mobile terminal 110 in the embodiment of the present application may be a mobile phone, a tablet computer, a desktop type, a laptop, a handheld computer, a notebook computer, an ultra-mobile personal computer (UMPC), or a netbook.
  • mobile terminals that can wirelessly charge other mobile terminals such as cellular phones, personal digital assistants (PDA), augmented reality (AR) ⁇ virtual reality (VR) devices, and vehicle-mounted devices.
  • PDA personal digital assistants
  • AR augmented reality
  • VR virtual reality
  • vehicle-mounted devices vehicle-mounted devices.
  • the application embodiment does not impose special restrictions on the specific form of the first mobile terminal 110.
  • the second mobile terminal 120 in the embodiment of the application may be a mobile phone, a wearable device (such as a smart watch, etc.), a true wireless stereo (TWS) headset, a tablet computer, a laptop, a handheld computer, a notebook computer, Ultra-mobile personal computer (UMPC), netbook, cell phone, personal digital assistant (PDA), augmented reality (AR) ⁇ virtual reality (VR) equipment, etc.
  • TWS true wireless stereo
  • UMPC Ultra-mobile personal computer
  • netbook cell phone
  • PDA personal digital assistant
  • AR augmented reality
  • VR virtual reality
  • the specific form of the second mobile terminal 120 is not particularly limited in the embodiment of the present application.
  • FIG. 2B shows a schematic diagram of a charging circuit structure of a mobile phone 210 and a smart watch 220 provided by an embodiment of the present application.
  • the mobile phone 210 includes a processor 211, a battery 212, a charging control module 213, a wireless charging control module 214, a wireless charging coil 215, and a charging interface 216.
  • the smart watch 220 includes a processor 221, a battery 222, a charging control module 223, a wireless charging control module 224, a wireless charging coil 225, and a charging interface 226.
  • the mobile phone 210 is used as the transmitter of the wireless charging signal
  • the smart watch 220 is used as the receiver of the wireless charging signal
  • the mobile phone 210 is the smart watch 220 for wireless charging. Therefore, as shown in FIG. 2B, the wireless charging coil 215 of the mobile phone 210 may be referred to as a transmitting (Tx) coil, and the wireless charging coil 225 of the smart watch 220 may be referred to as a receiving (Rx) coil.
  • Tx transmitting
  • Rx receiving
  • the reverse wireless charging function of the mobile phone 210 is turned off by default.
  • the mobile phone 210 can receive a user's click operation on the "battery" option 201 in the setting interface shown in FIG. 2A (a), and in response to the click operation, the mobile phone 210 can display the battery interface shown in FIG. 2A (b) 202.
  • the battery interface 202 includes a “wireless reverse charging” switch 203. In response to the user's turning on the "wireless reverse charging” switch 203, the mobile phone 210 can activate the reverse wireless charging function.
  • the processor 221 of the mobile phone 210 can control the charging control module 213 to receive the input of the battery 212 and input the direct current signal to the wireless charging control module 214.
  • the wireless charging control module 214 can convert the direct current signal into an alternating electric signal, and then input the alternating electric signal to the wireless charging coil 215.
  • the wireless charging coil 215 can generate an alternating electromagnetic field in response to the alternating electric signal.
  • the wireless charging coil 225 of the smart watch 220 is coupled with the wireless charging coil 215 of the mobile phone 210. After the wireless charging function of the smart watch 220 is turned on, the processor 221 of the smart watch 220 can control the wireless charging coil (that is, the Rx coil) 225 to start working.
  • the wireless charging coil (ie, Rx coil) 225 induces the alternating electromagnetic field emitted by the wireless charging coil (ie, Tx coil) 215 to generate an alternating electrical signal, and input the alternating electrical signal to the wireless charging control module 224.
  • the wireless charging control module 224 can rectify the alternating electric signal into a direct current signal, and input the direct current signal to the charging control module 223.
  • the charging control module 223 can charge the battery 222 according to the direct current signal.
  • the wireless charging control module 214 and the wireless charging control module 224 may include a matching circuit.
  • the matching circuit may include a combination of capacitances.
  • the matching circuit in the wireless charging control module 214 is used to form an LC resonance with the wireless charging coil 215 to improve the transmission efficiency of the wireless charging coil 215.
  • the matching circuit in the wireless charging control module 224 is used to form an LC resonance with the wireless charging coil 225 to improve the receiving efficiency of the wireless charging coil 225.
  • the aforementioned mobile phone 210 can also receive wireless charging input from other devices through the wireless charging coil 215, that is, the mobile phone 210 supports forward wireless charging.
  • the principle of forward wireless charging of the mobile phone 210 reference may be made to the principle of wireless charging of the smart watch 220 when the mobile phone 210 is wirelessly charging the smart watch 220.
  • the mobile phone 210 may also support wired charging.
  • the processor 211 of the mobile phone 210 is connected to the charging interface 216 for detecting whether there is a charging input (ie, a wired charging input) on the charging interface 216.
  • the processor 211 can detect that there is a charging input on the charging interface 216. At this time, the processor 211 may communicate with the charging control module 213 to configure the parameters of the charging control module 213, so that the charging control module 213 is configured to charge the battery 212 according to the parameters. Specifically, the charging control module 213 is connected to the charging interface 216 for receiving the charging input from the power adapter 217 through the charging interface 216 to charge the battery 212.
  • the charging interface 216 may be a USB interface.
  • the smart watch 220 may also support wired charging.
  • the processor 221 of the smart watch 220 is connected to the charging interface 226.
  • the charging interface 226 is used to connect the power adapter 227 to charge the smart watch 220 by wire.
  • the principle of each device in the smart watch 220 interacting to charge the battery 222 can refer to the wired charging principle of the mobile phone 210, which is not repeated in the embodiment of the present application.
  • FIG. 2B only shows a schematic diagram of the charging circuit structure of a mobile phone 210 and a smart watch 220.
  • the charging circuit structure of the mobile terminal in the embodiment of the present application includes but is not limited to the structure shown in FIG. 2B.
  • the functions of the charging control module 213 and the wireless charging control module 214 shown in FIG. 2B can be integrated into one charging management module.
  • the charging circuit structure of the mobile phone 210 and the smart watch 220 may be different.
  • FIG. 3 is a schematic structural diagram of a mobile terminal (such as a first mobile terminal 110 or a second mobile terminal 120) provided by an embodiment of this application.
  • the mobile terminal 300 may include a processor 310, an external memory interface 320, an internal memory 321, a universal serial bus (USB) interface 330, a charging management module 340, a battery 341, and a wireless charging coil 342, antenna 1, antenna 2, mobile communication module 350, wireless communication module 360, audio module 370, speaker 370A, receiver 370B, microphone 370C, earphone interface 370D, sensor module 380, buttons 390, motor 391, indicator 392, camera 393, a display screen 394, a subscriber identification module (SIM) card interface 395, and so on.
  • SIM subscriber identification module
  • the sensor module 380 may include a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, etc.
  • the mobile terminal 300 shown in FIG. 3 may be the mobile phone 210 shown in FIG. 2B.
  • the processor 310 shown in FIG. 3 is the processor 211 of the mobile phone 210
  • the battery 341 is the battery 212 of the mobile phone 210
  • the charging management module 340 includes the charging control module 213 and wireless charging control of the mobile phone 210.
  • the wireless charging coil 342 is the wireless charging coil 215 of the mobile phone 210
  • the USB interface 330 is the charging interface 216 of the mobile phone 210.
  • the mobile terminal 300 shown in FIG. 3 may be the smart watch 220 shown in FIG. 2B.
  • the processor 310 shown in FIG. 3 is the processor 221 of the smart watch 220
  • the battery 341 is the battery 222 of the smart watch 220
  • the charge management module 340 includes the charge control module 223 of the smart watch 220
  • the wireless charging control module 224 is the wireless charging coil 225 of the smart watch 220
  • the USB interface 330 is the charging interface 226 of the smart watch 220.
  • the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the mobile terminal 300.
  • the mobile terminal 300 may include more or fewer components than shown, or combine certain components, or split certain components, or arrange different components.
  • the illustrated components can be implemented in hardware, software, or a combination of software and hardware.
  • the processor 310 may include one or more processing units.
  • the processor 310 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), and an image signal processor. (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (NPU) Wait.
  • the different processing units may be independent devices or integrated in one or more processors.
  • the processor 310 (that is, the processor 211 or the processor 221 shown in FIG. 2B) may be an application processor AP.
  • the controller may be the nerve center and command center of the mobile terminal 300.
  • the controller can generate operation control signals according to the instruction operation code and timing signals to complete the control of fetching instructions and executing instructions.
  • a memory may also be provided in the processor 310 to store instructions and data.
  • the memory in the processor 310 is a cache memory.
  • the memory can store instructions or data that the processor 310 has just used or used cyclically. If the processor 310 needs to use the instruction or data again, it can be directly called from the memory. Repeated accesses are avoided, the waiting time of the processor 310 is reduced, and the efficiency of the system is improved.
  • the processor 310 may include one or more interfaces.
  • the interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, and a universal asynchronous transceiver (universal asynchronous) interface.
  • I2C integrated circuit
  • I2S integrated circuit built-in audio
  • PCM pulse code modulation
  • PCM pulse code modulation
  • UART universal asynchronous transceiver
  • MIPI mobile industry processor interface
  • GPIO general-purpose input/output
  • SIM subscriber identity module
  • Or USB interface etc.
  • the USB interface 330 is an interface that complies with the USB standard specification, and specifically may be a Mini USB interface, a Micro USB interface, a USB Type C interface, and so on.
  • the USB interface 330 can be used to connect a charger (the voltage adapter 217 shown in FIG. 2B) to charge the mobile terminal 300, and can also be used to transfer data between the mobile terminal 300 and peripheral devices. It can also be used to connect earphones and play audio through earphones.
  • the interface can also be used to connect other electronic devices or mobile terminals, such as AR devices.
  • the interface connection relationship between the modules illustrated in the embodiment of the present invention is merely a schematic description, and does not constitute a structural limitation of the mobile terminal 300.
  • the mobile terminal 300 may also adopt different interface connection modes in the foregoing embodiments, or a combination of multiple interface connection modes.
  • the charging management module 340 is used to receive charging input from the charger.
  • the charger can be a wireless charger (such as a wireless charging base of the mobile terminal 300 or other devices that can wirelessly charge the mobile terminal 300), or a wired charger (such as a voltage adapter 217 or a voltage adapter as shown in FIG. 2B). 227).
  • the mobile terminal 300 may support wired charging.
  • the charging management module 340 may receive the charging input of the wired charger through the USB interface 330.
  • the mobile terminal 300 may support forward wireless charging.
  • the charging management module 340 may receive the wireless charging input through the wireless charging coil 342 of the mobile terminal 300.
  • the charging management module 340 and the wireless charging coil 342 are connected through a matching circuit 443.
  • the wireless charging coil 342 may be coupled with the wireless charging coil of the above-mentioned wireless charger, and induce the alternating electromagnetic field emitted by the wireless charging coil of the wireless charger to generate an alternating electric signal.
  • the alternating electric signal generated by the wireless charging coil 342 is transmitted to the charging management module 340 through the matching circuit 443 so as to wirelessly charge the battery 341.
  • the charging management module 340 can also supply power to the mobile terminal 300 while charging the battery 341.
  • the charging management module 340 receives the input of the battery 341, and supplies power to the processor 310, the internal memory 321, the external memory, the display screen 394, the camera 393, and the wireless communication module 360.
  • the charging management module 340 can also be used to monitor the battery capacity of the battery 341, the number of battery cycles, and the battery health status (leakage, impedance) and other parameters.
  • the charging management module 340 may also be provided in the processor 310.
  • the mobile terminal 300 may support wireless charging.
  • the charging management module 340 may also receive an input from the battery 341, and convert the direct current signal input from the battery 341 into an alternating current signal.
  • the alternating current signal is transmitted to the wireless charging coil 342 through the matching circuit 443.
  • the wireless charging coil 342 can generate an alternating electromagnetic field upon receiving the alternating current signal.
  • the wireless charging coils of other mobile terminals induce the alternating electromagnetic field to perform wireless charging. That is, the mobile terminal 300 can also wirelessly charge other mobile terminals.
  • wired charging For a detailed description of the wired charging, forward wireless charging, and wireless charging performed by the mobile terminal 300, reference may be made to the introduction of the principles of wired charging, forward wireless charging, and wireless charging of the mobile phone 210 in the above examples. To repeat.
  • the wireless communication function of the mobile terminal 300 can be implemented by the antenna 1, the antenna 2, the mobile communication module 350, the wireless communication module 360, the modem processor, and the baseband processor.
  • the antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals.
  • Each antenna in the mobile terminal 300 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization.
  • Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network.
  • the antenna can be used in combination with a tuning switch.
  • the mobile communication module 350 can provide a wireless communication solution including 2G/3G/4G/5G and the like applied to the mobile terminal 300.
  • the wireless communication module 360 can provide applications on the mobile terminal 300 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), and global navigation satellites. System (global navigation satellite system, GNSS), frequency modulation (FM), NFC, infrared technology (infrared, IR) and other wireless communication solutions.
  • WLAN wireless local area networks
  • BT wireless fidelity
  • BT wireless fidelity
  • BT wireless fidelity
  • BT global navigation satellites.
  • System global navigation satellite system, GNSS
  • FM frequency modulation
  • NFC infrared technology
  • IR infrared technology
  • the antenna 1 of the mobile terminal 300 is coupled with the mobile communication module 350
  • the antenna 2 is coupled with the wireless communication module 360, so that the mobile terminal 300 can communicate with the network and other devices through wireless communication technology.
  • the mobile terminal 300 implements a display function through a GPU, a display screen 394, and an application processor.
  • the GPU is an image processing microprocessor, which is connected to the display screen 394 and the application processor.
  • the GPU is used to perform mathematical and geometric calculations and is used for graphics rendering.
  • the processor 310 may include one or more GPUs that execute program instructions to generate or change display information.
  • the display screen 394 is used to display images, videos, and the like.
  • the display screen 394 includes a display panel.
  • the mobile terminal 300 may include one or N display screens 394, and N is a positive integer greater than one.
  • the mobile terminal 300 can implement a shooting function through an ISP, a camera 393, a video codec, a GPU, a display screen 394, and an application processor.
  • the ISP is used to process the data fed back by the camera 393.
  • the ISP may be provided in the camera 393.
  • the camera 393 is used to capture still images or videos.
  • the mobile terminal 300 may include 1 or N cameras 393, and N is a positive integer greater than 1.
  • the external memory interface 320 may be used to connect an external memory card, such as a Micro SD card, so as to expand the storage capacity of the mobile terminal 300.
  • the external memory card communicates with the processor 310 through the external memory interface 320 to realize the data storage function. For example, save music, video and other files in an external memory card.
  • the internal memory 321 may be used to store computer executable program code, where the executable program code includes instructions.
  • the processor 310 executes various functional applications and data processing of the mobile terminal 300 by running instructions stored in the internal memory 321.
  • the internal memory 321 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash storage (UFS), and the like.
  • the mobile terminal 300 can implement audio functions through an audio module 370, a speaker 370A, a receiver 370B, a microphone 370C, a headset interface 370D, and an application processor. For example, music playback, recording, etc.
  • the audio module 370 is used to convert digital audio information into an analog audio signal for output, and also used to convert an analog audio input into a digital audio signal.
  • the audio module 370 may be provided in the processor 310, or part of the functional modules of the audio module 370 may be provided in the processor 310.
  • the speaker 370A also called a "speaker” is used to convert audio electrical signals into sound signals.
  • the receiver 370B also called “earpiece”, is used to convert audio electrical signals into sound signals.
  • Microphone 370C also called “microphone”, “microphone”, is used to convert sound signals into electrical signals.
  • the mobile terminal 300 may be provided with at least one microphone 370C.
  • the earphone interface 370D is used to connect wired earphones.
  • the earphone interface 370D may be a USB interface 330, or a 3.5mm open mobile terminal platform (OMTP) standard interface, or a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.
  • OMTP open mobile terminal platform
  • CTIA cellular telecommunications industry association
  • the button 390 includes a power button, a volume button, and so on.
  • the button 390 may be a mechanical button. It can also be a touch button.
  • the mobile terminal 300 may receive key input, and generate key signal input related to user settings and function control of the mobile terminal 300.
  • the motor 391 can generate vibration prompts.
  • the motor 391 can be used for incoming call vibration notification, and can also be used for touch vibration feedback.
  • the indicator 392 may be an indicator light, which may be used to indicate the charging status, power change, and may also be used to indicate messages, missed calls, notifications, and so on.
  • the SIM card interface 395 is used to connect to the SIM card. The SIM card can be inserted into the SIM card interface 395 or pulled out from the SIM card interface 395 to achieve contact and separation with the mobile terminal 300.
  • the mobile terminal 300 may support 1 or N SIM card interfaces, and N is a positive integer greater than 1.
  • the SIM card interface 195 can support Nano SIM cards, Micro SIM cards, SIM cards, etc.
  • the mobile terminal 300 adopts an eSIM, that is, an embedded SIM card.
  • the eSIM card can be embedded in the mobile terminal 300 and cannot be separated from the mobile terminal 300.
  • the embodiment of the present application provides a wireless charging method for a mobile terminal, which can be applied to the process of wireless charging for the second mobile terminal 120 by the first mobile terminal 110 shown in FIG. 1.
  • the embodiment of the present application uses the first mobile terminal 110 shown in FIG. 1 as a mobile phone 210 and the second mobile terminal 120 as a smart watch 220 as an example to introduce a wireless charging method for a mobile terminal provided by the embodiment of the present application. .
  • the mobile phone 210 can detect the wireless signal from the smart watch 220 (such as a Bluetooth signal or the feedback signal of the NFC detection signal transmitted by the mobile phone 210); if the wireless signal from the smart watch 220 meets the preset conditions, the mobile phone 210 can The reverse wireless charging function of the mobile phone 210 is automatically turned on to wirelessly charge the smart watch 220. Among them, the mobile phone 210 can wirelessly charge the smart watch 220 according to the wireless charging protocol.
  • the wireless signal from the smart watch 220 such as a Bluetooth signal or the feedback signal of the NFC detection signal transmitted by the mobile phone 210.
  • the Bluetooth signal of the above-mentioned wireless signal satisfies the preset condition, which may specifically be: the RSSI of the Bluetooth signal is greater than the preset intensity threshold.
  • the above-mentioned wireless signal may be a feedback signal of the NFC detection signal; the wireless signal received by the mobile phone 210 from the smart watch 220 satisfies a preset condition, which may specifically be: the mobile phone 210 starts from transmitting the NFC detection signal and starts at the preset duration (such as The feedback signal is received within the preset duration).
  • the mobile phone 210 may receive the wireless signal from the smart watch 220.
  • the wireless signal may meet the preset conditions.
  • the smart watch 220 when the user wants to use the mobile phone 210 to wirelessly charge the smart watch 220, the smart watch 220 will be placed on the mobile phone 210 for a long time, so that the distance between the mobile phone 210 and the smart watch 220 is less than the preset distance threshold. . Therefore, if the distance between the mobile phone 210 and the smart watch 220 is less than the preset distance threshold within the first preset time period, it means that the user needs to use the mobile phone 210 to wirelessly charge the smart watch 220. At this time, the mobile phone 210 can automatically start the wireless power supply function, and wirelessly charge the smart watch 220 according to the wireless charging protocol. Through the method of the embodiments of the present application, automatic wireless charging between mobile terminals can be realized.
  • the above-mentioned wireless signal is a Bluetooth paging signal
  • the mobile phone 210 and the smart watch 220 have not established a Bluetooth connection as an example to introduce the method of the embodiment of the present application.
  • the above-mentioned wireless signal (ie, the Bluetooth paging signal) meeting the preset condition includes: the RSSI of the Bluetooth paging signal received by the mobile phone 210 from the smart watch 220 is greater than the preset intensity threshold.
  • the wireless charging method for a mobile terminal provided in an embodiment of the present application may include steps 401 to 404.
  • Step 401 The smart watch 220 broadcasts a Bluetooth paging signal.
  • the smart watch 220 may broadcast a Bluetooth paging signal (ie, page) in a frequency modulation manner.
  • the Bluetooth paging signal includes the Bluetooth address of the smart watch 220.
  • the aforementioned Bluetooth address may be a media access control (media access control, MAC) address.
  • the aforementioned Bluetooth paging signal may also include the Bluetooth name of the smart watch 220.
  • Step 402 The mobile phone 210 scans the Bluetooth paging signal broadcast by other devices, and detects the received signal strength indication (RSSI) of the Bluetooth paging signal.
  • RSSI received signal strength indication
  • the mobile phone 210 can periodically scan Bluetooth paging signals (ie, page) broadcast by other devices.
  • the mobile phone 210 can scan Bluetooth paging signals broadcast by other devices in a frequency modulation manner.
  • the mobile phone 210 and the smart watch 220 synchronize to the same hopping pattern, the mobile phone 210 scans (ie receives) the Bluetooth paging signal broadcast by the smart watch 220.
  • the RSSI of the Bluetooth paging signal can be calculated according to the signal power of the Bluetooth paging signal received by the mobile phone 210.
  • the RSSI of the Bluetooth paging signal is used to characterize the signal strength of the Bluetooth paging signal received by the mobile phone 210.
  • the signal power of the Bluetooth paging signal will be attenuated when the Bluetooth paging signal is sent from the transmitting end (such as the smart watch 220) to the receiving end (such as the mobile phone 210).
  • the distance between the receiving end and the transmitting end will affect the attenuation of the signal power of the Bluetooth paging signal.
  • the signal strength RSSI of the Bluetooth paging signal received by the mobile phone 210 from the smart watch 220 is: 10 ⁇ logP.
  • P represents the signal power of the Bluetooth paging signal received by the mobile phone 210.
  • the unit of RSSI is decibel relative to one milliwatt (dBm).
  • the transmission power of the smart watch 220 to transmit the above-mentioned Bluetooth paging signal is 1 milliwatt (mw).
  • the signal power of the Bluetooth paging signal received by the mobile phone 210 is also 1 mW.
  • the RSSI of the Bluetooth paging signal is zero.
  • the above ideal state does not exist in practical applications; therefore, the value of RSSI is basically a negative number. The closer the distance between the receiving end and the transmitting end, the larger the RSSI of the Bluetooth paging signal received by the receiving end, and the closer it is to zero.
  • the mobile phone 210 can receive the Bluetooth paging signal from the smart watch 220 (ie, the transmitting end).
  • the receiving end (such as the mobile phone 210) can use the following formula (1) to calculate the distance d between the receiving end and the transmitting end according to the RSSI of the Bluetooth paging signal received from the transmitting end (such as the smart watch 220).
  • n is the environmental attenuation factor.
  • represents the absolute value of RSSI of the Bluetooth paging signal received by the receiving end from the transmitting end; K is the absolute value of the RSSI of the Bluetooth paging signal received by the receiving end from the transmitting end when the distance between the transmitting end and the receiving end is 1 meter.
  • the mobile phone 210 can send a Bluetooth response signal to the smart watch 220 to establish an asynchronous connection-oriented link (ACL) link with the smart watch 220 . Then, the mobile phone 210 can exchange control commands with the smart watch 220 through the ACL link to configure a data channel (Channel) between the mobile phone 210 and the smart watch 220. Finally, the mobile phone 210 can transmit Bluetooth data (such as audio data, video data, or text data, etc.) to the smart watch 220 through the data channel.
  • ACL asynchronous connection-oriented link
  • the mobile phone 210 can exchange control commands with the smart watch 220 through the ACL link to configure a data channel (Channel) between the mobile phone 210 and the smart watch 220.
  • Bluetooth data such as audio data, video data, or text data, etc.
  • the RSSI of the Bluetooth paging signal received by the mobile phone 210 can represent the distance between the mobile phone 210 and the transmitting end of the Bluetooth paging signal. It can be understood that when the user wants to use the mobile phone 210 to wirelessly charge the smart watch 220, the smart watch 220 will be placed on the mobile phone 210 for a long time. As a result, the distance between the mobile phone 210 and the smart watch 220 is relatively close, so that the mobile phone 210 can wirelessly charge the smart watch 220.
  • the RSSI of the Bluetooth paging signal received by the mobile phone 210 from the smart watch 220 is large (for example, greater than the preset intensity threshold), it means that the distance between the mobile phone 210 and the smart watch 220 is relatively close, and the user may want to use the mobile phone 210.
  • the demand for wireless charging of the smart watch 220 is large (for example, greater than the preset intensity threshold).
  • Step 403 The mobile phone 210 determines whether the RSSI of the Bluetooth paging signal received from the smart watch 220 is greater than a preset intensity threshold.
  • step 404 is executed; if the RSSI of the Bluetooth paging signal received by the mobile phone 210 from the smart watch 220 is less than or equal to the preset intensity Threshold, then step 402 is executed.
  • the smart watch 220 may broadcast the Bluetooth paging signal multiple times. Therefore, the mobile phone 210 may receive multiple Bluetooth paging signals broadcast by the smart watch 220 within a period of time. If the mobile phone 210 receives the Bluetooth paging signal from the smart watch 220 within a period of time (such as the first preset duration), the RSSI of the Bluetooth paging signal is greater than the preset intensity threshold, the user wants to use the mobile phone 210 to wirelessly charge the smart watch 220 High sex.
  • the method of the embodiment of the present application may include step 403a. That is, the above step 403 can be replaced with step 403a.
  • Step 403a The mobile phone 210 determines whether the RSSI of the Bluetooth paging signal received from the smart watch 220 within the first preset time period is greater than a preset intensity threshold.
  • step 404 is executed; if the mobile phone 210 receives the RSSI from the smart watch within the first preset time period If the RSSI of any Bluetooth paging signal of the watch 220 is less than or equal to the preset intensity threshold, step 402 is executed.
  • the aforementioned first preset duration may be any duration such as 2 seconds (s), 3s, or 5s.
  • the mobile phone 210 can determine whether the RSSI of each received Bluetooth paging signal is greater than a preset intensity threshold, so as to determine whether the RSSI of the Bluetooth paging signal received by the mobile phone 210 from the smart watch 220 within the first preset period of time is greater than Preset intensity threshold.
  • step 403a taking the mobile phone 210 to determine whether the RSSI of the Bluetooth paging signal received from the smart watch 220 is greater than the preset intensity threshold, the specific implementation process of step 403a is introduced.
  • the Bluetooth function of the mobile phone 210 After the Bluetooth function of the mobile phone 210 is turned on, it can scan for Bluetooth paging signals broadcast by other devices; then, the mobile phone 210 can perform step a to step e to implement the function of step 403a.
  • the above step 403a may include step a to step e shown in FIG. 6.
  • Step a If the mobile phone 210 receives a Bluetooth paging signal from the smart watch 220, it is determined whether the RSSI of the Bluetooth paging signal is greater than a preset intensity threshold.
  • step b is executed; if the RSSI of the Bluetooth paging signal received in step a is less than or equal to the preset strength threshold, then continue to execute step a.
  • Step b The mobile phone 210 starts a timer for the smart watch 220 to start the timer.
  • the initial value of the timer can be 00:00:00.
  • the mobile phone 210 can perform step c.
  • Step c If the mobile phone 210 receives the Bluetooth paging signal from the smart watch 220, it is determined whether the RSSI of the Bluetooth paging signal is greater than the preset intensity threshold.
  • step c If the RSSI of the Bluetooth paging signal received in step c is greater than the preset strength threshold, then continue to step d; if the RSSI of the Bluetooth paging signal received in step c is less than or equal to the preset strength threshold, then step e is executed.
  • Step d The mobile phone 210 determines whether the timing duration of the timer is greater than or equal to the first preset duration.
  • step c is continued; if the timing duration of the timer is greater than or equal to the first preset duration, step 404 is executed.
  • the mobile phone 210 may also perform step e.
  • Step e The mobile phone 210 resets the timer.
  • the mobile phone 210 may receive the Bluetooth paging signal from the smart watch 220 again. In response to this situation, the mobile phone 210 can continue from step a to step e.
  • the following situation may exist: the distance between the smart watch 220 and the mobile phone 210 is relatively short, so that the mobile phone 210 receives 1 or 2 Bluetooth of the smart watch 220 within the first preset time period (for example, 2s).
  • the RSSI of the paging signal is greater than the preset intensity threshold.
  • the distance between the smart watch 220 and the mobile phone 210 becomes longer, so that the mobile phone 210 cannot receive the Bluetooth paging signal from the smart watch 220.
  • adopting the above-mentioned solution of step a to step e will cause the mobile phone 210 to misjudge whether the smart watch 220 is wirelessly charged.
  • N is a preset positive integer.
  • N may be the number of Bluetooth paging signals received by the receiving end from the transmitting end obtained through multiple statistics in the following cases.
  • the above situation is specifically: within the first preset time period, the distance between the receiving end and the transmitting end is less than the preset distance threshold.
  • the above step 403a may include step A to step H shown in FIG. 7A.
  • Step A If the mobile phone 210 receives the Bluetooth paging signal from the smart watch 220, it is determined whether the RSSI of the Bluetooth paging signal is greater than the preset intensity threshold.
  • step B is executed; if the RSSI of the Bluetooth paging signal received in step A is less than or equal to the preset strength threshold, then step A is continued.
  • Step B The mobile phone 210 starts a timer for the smart watch 220 to start the timer; and starts a counter, the initial count value of the counter is 0 or 1.
  • the initial value of the timer can be 00:00:00.
  • the mobile phone 210 can perform step C.
  • Step C If the mobile phone 210 receives the Bluetooth paging signal from the smart watch 220, it is determined whether the RSSI of the Bluetooth paging signal is greater than the preset intensity threshold.
  • step C If the RSSI of the Bluetooth paging signal received in step C is greater than the preset strength threshold, then continue to perform steps D and E; if the RSSI of the Bluetooth paging signal received in step C is less than or equal to the preset strength threshold, then perform step G and step H.
  • Step D Add 1 to the count value of the counter.
  • Step E The mobile phone 210 determines whether the timing duration of the timer is greater than or equal to the first preset duration.
  • step C if the timing duration of the timer is less than the first preset duration, step C is continued; if the timing duration of the timer is greater than or equal to the first preset duration, step F is executed.
  • Step F The mobile phone 210 judges whether the count value of the counter is equal to N.
  • step F if the count value of the counter is equal to N, the mobile phone 210 can perform step 404; if the count value of the counter is not equal to N (for example, less than N), the mobile phone 210 can perform step C. Optionally, if the count value of the counter is equal to N, the mobile phone 210 may also perform step G and step H.
  • Step G The mobile phone 210 resets the timer.
  • Step H The mobile phone clears the counter.
  • the mobile phone 210 may receive the Bluetooth paging signal from the smart watch 220 again. In response to this situation, the mobile phone 210 can continue step A to step H.
  • the mobile phone 210 may receive the Bluetooth paging signal from the smart phone 220 through a straight line transmission, or it may receive the reflection transmission from the smart phone 220 through obstacles.
  • Bluetooth paging signal the attenuation degree of the Bluetooth paging signal transmitted through reflection is greater than that of the Bluetooth paging signal transmitted through a straight line.
  • the RSSI parameters that affect the Bluetooth paging signal include not only the distance between the receiving end and the transmitting end, but also the transmission mode of the Bluetooth paging signal (such as linear transmission or reflective transmission).
  • the RSSI of the Bluetooth paging signal is also affected by the channel through which the Bluetooth paging signal is transmitted.
  • the parameters that affect the RSSI of the Bluetooth paging signal include: the distance between the receiving end and the transmitting end, the transmission mode of the Bluetooth paging signal, and the influence of various factors such as the channel.
  • the mobile phone 210 can detect the RSSI of multiple Bluetooth paging signals within the first preset period of time, and use the multiple Bluetooth paging signals. The average value of the RSSI of the signal, and then compare whether the average value is greater than the preset intensity threshold.
  • the mobile phone 210 can detect the RSSI of the Bluetooth paging signal on a fixed channel. In this way, the accuracy of the RSSI detected by the mobile phone 210 can be improved.
  • the mobile phone 210 may send the first prompt message.
  • the first prompt information is used to request the user to confirm whether the smart watch 220 is wirelessly charged. For example, as shown in FIG. 7B, the smart watch 220 is close to the mobile phone 210, and the distance between the smart watch 220 and the mobile phone 210 is less than the preset distance threshold.
  • the mobile phone 210 can display the first prompt message 701 shown in FIG. 7B, such as "Please confirm whether to use this phone to wirelessly charge the smart watch!.
  • the first prompt message 701 also includes a "Yes" button and a "No" button.
  • the mobile phone 210 may execute step 404.
  • the mobile phone 210 may no longer perform step 403a to step 404 within the fourth preset time period.
  • the first operation is used to trigger the mobile phone 210 to wirelessly charge the smart watch 220.
  • the first operation is the user's click operation on the "Yes" button shown in FIG. 7B.
  • the second operation is used to trigger the mobile phone 210 to not need to wirelessly charge the smart watch 220.
  • the second operation is the user's click operation on the "No" button shown in FIG. 7B.
  • the foregoing fourth preset duration may be any duration such as 1 hour, 2 hours, 3 hours, 6 hours, or 24 hours.
  • the mobile phone 210 may also send a second prompt message at the same time when the mobile phone 210 sends out the first prompt message.
  • the second prompt information may be a preset ring tone or vibration prompt.
  • the mobile phone 210 may not receive the first operation or the second operation within the fourth preset time period. Perform step 403a-step 404.
  • Step 404 The mobile phone 210 activates the reverse wireless charging function to wirelessly charge the smart watch 220.
  • the mobile phone 210 can activate the reverse wireless charging function, and wirelessly charge the smart watch 220 according to the wireless charging protocol.
  • wireless charging technology can follow any protocol such as Qi protocol, (Power Matters Alliance, PMA) protocol, or (Alliance for Wireless Power, A4WP) protocol.
  • Qi protocol Power Matters Alliance
  • PMA Power Matters Alliance
  • A4WP Alliance for Wireless Power
  • the wireless charging of the mobile terminal may follow the above-mentioned Qi protocol.
  • the mobile phone 210 activates the reverse wireless charging function to wirelessly charge the smart watch 220 (that is, step 404), which may specifically include step 801 to step 808.
  • step 404 may include step 801 to step 808.
  • Step 801 The mobile phone 210 determines whether a metal object is placed on the wireless charging coil of the mobile phone 210.
  • the wireless charging control module 214 of the mobile phone 210 may include a matching circuit, and the matching circuit may include a combination of capacitors. If a metal object is placed on the wireless charging coil of the mobile phone 210, the mobile phone 210 can detect a change in the voltage across the capacitor in the matching circuit.
  • the aforementioned metal object may be the wireless charging coil of the smart watch 220, or may be other metal foreign objects.
  • the metal foreign object may be a coin.
  • the mobile phone 210 may perform step 802. If the mobile phone 210 determines that no metal objects are placed on the wireless charging coil of the mobile phone 210, step 801 is continued.
  • Step 802 The mobile phone 210 transmits an Internet packet detector (Packet Internet Groper, ping) message through the wireless charging coil.
  • an Internet packet detector Packet Internet Groper, ping
  • the aforementioned metal object may be the wireless charging coil of the smart watch 220, or may be other metal foreign objects.
  • the above ping message is used for foreign object detection. If the aforementioned metal object is the wireless charging coil of the smart watch 220, the smart watch 220 may reply to the mobile phone 210 a response message of the ping message, such as a signal strength (Signal Strength) message. If the metal object is a metal foreign object, the mobile phone 210 will not receive the response message of the ping message.
  • the alternating electromagnetic field generated by the wireless charging coil of the mobile phone 210 causes the metal foreign objects to generate heat. If the metal foreign body generates a lot of heat, it may cause the combustible materials around the metal foreign body to burn, posing a safety hazard. In order to eliminate potential safety hazards, in some embodiments, the mobile phone 210 may perform foreign object detection before wirelessly charging other devices.
  • Step 803 The smart watch 220 receives the ping message through the wireless charging coil.
  • Step 804 The smart watch 220 replies the Signal Strength message to the mobile phone 210 through the wireless charging coil.
  • the Signal Strength message may indicate the degree of coupling between the wireless charging coil of the smart watch 220 and the wireless charging coil of the mobile phone 210, that is, whether the wireless charging coil of the smart watch 220 and the wireless charging coil of the mobile phone 210 are placed correctly. Among them, the Signal Strength message may be called a signal strength message.
  • Step 805 The mobile phone 210 receives the Signal Strength message from the smart watch 220 within the third preset time period, and then enters the identification and configuration (ID&Configuration) phase, and waits to receive the ID message and configuration (Configuration) message from the smart watch 220.
  • ID&Configuration identification and configuration
  • the aforementioned ID message may include the VID of the smart watch 220 and the product serial number.
  • the Configuration message is used to indicate the maximum power required by the smart watch 220 for wireless charging.
  • the mobile phone 210 may receive the Signal Strength message from the smart watch 220 through the wireless charging coil.
  • the smart watch 220 may send the ID message and the Configuration message to the mobile phone 210 through the wireless charging coil.
  • Step 806 The mobile phone 210 receives the ID message and the Configuration message from the smart watch 220 through the wireless charging coil, and adjusts the output parameters of the wireless charging coil of the mobile phone 210 according to the Configuration message to wirelessly charge the smart watch 220.
  • the mobile phone 210 can receive the ID message and the Configuration message from the smart watch 220 through the wireless charging coil.
  • the ID message is used to indicate identity information such as the product model and MAC address of the smart watch 220.
  • the mobile phone 210 can identify the product model and MAC address of the smart watch 220 according to the ID message of the smart watch 220.
  • the mobile phone 210 in order to prevent the mobile phone 210 from consuming the power of the mobile phone 210 by wirelessly charging other's electronic products; the mobile phone 210 can identify the identity information of the smart watch 220 through the ID message.
  • the smart watch 220 can be wirelessly charged; if the smart watch 220 is not a pre-configured mobile terminal, the mobile phone 210 will not wirelessly charge the smart watch 220.
  • the mobile phone 210 can compare the identity information of the smart watch 220 with the identity information of the pre-configured mobile terminal to determine whether the smart watch 220 is a pre-configured mobile terminal.
  • the identity information of the pre-configured mobile terminal may include identity information such as product model and MAC address. It should be noted that the ID message is optional. In this case, as long as the distance between the mobile phone 210 and the smart watch 220 is less than the preset distance threshold, the mobile phone 210 can wirelessly charge the smart watch 220.
  • Step 807 The smart watch 220 sends a charge status (Charge Status) message to the mobile phone 210 during the wireless charging process.
  • the Charge Status message is used to indicate the current power of the smart watch 220 and the maximum power required for wireless charging.
  • Step 808 The mobile phone 210 adjusts the output parameters of the wireless charging coil of the mobile phone 210 according to the Charge Status message to wirelessly charge the smart watch 220.
  • the Charge Status message may indicate that the power of the smart watch 220 has reached a preset power threshold (such as 100% or 95%, etc.), and the mobile phone 210 may stop wireless charging the smart watch 220.
  • a preset power threshold such as 100% or 95%, etc.
  • the method for the mobile phone 210 to wirelessly charge the smart watch 220 according to the wireless charging protocol includes, but is not limited to, the methods described in step 801 to step 808.
  • the method for wirelessly charging the smart watch 220 by the mobile phone 210 according to the wireless charging protocol reference may be made to the detailed description in the conventional technology, which will not be repeated in the embodiment of the present application.
  • the embodiment of the present application provides a wireless charging method for a mobile terminal. If the RSSI of the Bluetooth paging signal received from the smart watch 220 by the mobile phone 210 within the first preset period of time is greater than the preset intensity threshold, the mobile phone 210 can automatically follow the wireless charging method.
  • the charging protocol is wireless charging of the smart watch 220. In this way, automatic wireless charging between mobile terminals can be realized.
  • the mobile phone 210 can interact with the smart watch 220 to complete foreign object detection, coil position confirmation, and charging parameter negotiation.
  • the aforementioned foreign object detection, coil position confirmation, and charging parameter negotiation may be referred to as the secondary confirmation of wireless charging; the RSSI judgment of the aforementioned Bluetooth paging signal is referred to as the primary judgment of wireless charging.
  • automatic wireless charging between mobile terminals can be realized through the above-mentioned double judgment of the first judgment and the second confirmation.
  • the mobile phone 210 and the smart watch 220 can communicate through the Bluetooth connection.
  • the mobile phone 210 and the smart watch 220 can transmit service data such as audio data, video data, or text data.
  • the mobile phone 210 and the smart watch 220 will also transmit Bluetooth control information, such as a Bluetooth signal used to detect the quality parameters of the Bluetooth connection.
  • Bluetooth signals are collectively referred to as Bluetooth signals.
  • the wireless charging method for a mobile terminal may include steps 901 to 904.
  • Step 901 The smart watch 220 sends a Bluetooth signal to the mobile phone 210.
  • Step 902 The mobile phone receives the Bluetooth signal from the smart watch 220, and detects the RSSI of the Bluetooth signal.
  • the RSSI of the Bluetooth signal is used to characterize the signal strength of the Bluetooth signal received by the mobile phone 210. It can be understood that when the Bluetooth paging signal is sent from the transmitting end (such as the smart watch 220) to the receiving end (such as the mobile phone 210) receiving the Bluetooth signal, the signal power of the Bluetooth signal will be attenuated. For example, the distance between the receiving end and the transmitting end will affect the attenuation of the signal power of the Bluetooth signal. The greater the distance between the receiving end and the transmitting end, the greater the attenuation of the signal power of the Bluetooth signal; the smaller the distance between the receiving end and the transmitting end, the smaller the attenuation of the signal power of the Bluetooth signal.
  • the mobile phone 210 receives the Bluetooth signal from the smart watch 220 within a period of time (such as the first preset duration) and the RSSI of the Bluetooth signal is greater than the preset intensity threshold, the user wants to use the mobile phone 210 as smart
  • the possibility of wireless charging of the watch 220 is higher.
  • the method of the embodiment of the present application may further include step 903.
  • Step 903 The mobile phone 210 determines whether the RSSI of the Bluetooth signal received from the smart watch 220 is greater than a preset intensity threshold.
  • step 904 is executed; if the RSSI of the Bluetooth signal received by the mobile phone 210 from the smart watch 220 is less than or equal to the preset intensity threshold, then Step 902 is executed.
  • the method in this embodiment of the present application may include step 903a, that is, the above step 903 may be replaced with step 903a.
  • Step 903a The mobile phone 210 determines whether the RSSI of the Bluetooth signal received from the smart watch 220 within the first preset time period is greater than a preset intensity threshold.
  • step 904 is performed; if the mobile phone 210 is received from the smart watch 220 within the first preset time period If the RSSI of any Bluetooth signal is less than or equal to the preset intensity threshold, step 902 is executed.
  • the aforementioned first preset duration may be any duration such as 2 seconds (s), 3s, or 5s. It should be noted that, for step 903a, reference may be made to the detailed description of step 403, which will not be repeated in this embodiment of the present application.
  • step 903a if the RSSI of the Bluetooth signal received from the smart watch 220 by the mobile phone 210 within the first preset time period is greater than the preset intensity threshold, the mobile phone 210 may send the first prompt message. In response to the user's first operation on the first prompt message, the mobile phone 210 may perform step 904. In response to the second operation of the user, the mobile phone 210 may no longer perform step 903a to step 904 within the fourth preset time period.
  • the mobile phone 210 may also send a second prompt message at the same time when the mobile phone 210 sends out the first prompt message.
  • the second prompt information may be a preset ring tone or vibration prompt.
  • Step 903a-step 904 are executed.
  • Step 904 The mobile phone 210 automatically turns on the reverse wireless charging function to wirelessly charge the smart watch 220.
  • the mobile phone 210 can automatically turn on the reverse wireless charging function, and wirelessly charge the smart watch 220 according to the wireless charging protocol. It should be noted that, for step 904, reference may be made to the detailed description of step 404 above, which is not repeated here in the embodiment of the present application.
  • the embodiment of the application provides a wireless charging method for a mobile terminal. If the RSSI of the Bluetooth signal received by the mobile phone 210 from the smart watch 220 within the first preset period of time is greater than the preset intensity threshold, the mobile phone 210 can automatically follow the wireless charging protocol Wirelessly charge the smart watch 220. In this way, automatic wireless charging between mobile terminals can be realized.
  • the mobile phone 210 can interact with the smart watch 220 to complete foreign object detection, coil position confirmation, and charging parameter negotiation.
  • the aforementioned foreign object detection, coil position confirmation, and charging parameter negotiation may be referred to as the secondary confirmation of wireless charging; the RSSI judgment of the aforementioned Bluetooth signal is referred to as the primary judgment of wireless charging.
  • automatic wireless charging between mobile terminals can be realized through the above-mentioned double judgment of the first judgment and the second confirmation.
  • the wireless charging method for a mobile terminal provided in an embodiment of the present application may include steps 1001 to 1003.
  • Step 1001 the mobile phone 210 periodically sends an NFC detection signal.
  • the mobile phone 210 may send the NFC detection signal according to the first preset period when the screen is on.
  • the bright screen scene may be any scene where the mobile phone 210 displays a lock screen interface, the mobile phone 210 displays a main interface (ie desktop), or the mobile phone 210 displays any application interface.
  • the mobile phone 210 may send the NFC detection signal according to the second preset period when the screen of the mobile phone 210 is off (ie, the mobile phone 210 is black).
  • the foregoing first preset period may be any time length such as 500 milliseconds (ms), 400 ms, 600 ms, or 450 ms.
  • the second preset period can be any time length such as 2 seconds (s), 3s, 1s, or 1.5s.
  • Step 1002 the mobile phone 210 detects the feedback signal of the aforementioned NFC detection signal.
  • the mobile phone 210 is an active NFC device
  • the smart watch 220 is an active NFC device or a passive NFC device.
  • the active NFC device can activate itself to send signals or data to other NFC devices.
  • Passive NFC devices cannot activate themselves to actively send signals or data to other NFC devices; however, they can generate feedback in response to signals emitted by active NFC devices.
  • the smart watch 220 can sense the NFC detection signal.
  • a preset distance threshold such as 10 centimeters (cm)
  • the smart watch 220 that passively receives the NFC detection signal can sense the NFC detection signal.
  • both the mobile phone 210 and the smart watch 220 can feel the corresponding feedback.
  • the feedback signal of the aforementioned NFC detection signal is that the mobile phone 210 detects a signal level change.
  • step 1003 is executed. If the feedback signal of the NFC detection signal is not detected within the second preset period of time since sending the NFC detection signal, then step 1001 to step 1002 are executed again.
  • the second preset duration may be equal to or less than the foregoing first preset period.
  • the second preset duration may be equal to or less than the second preset period.
  • the mobile phone 210 may send the first prompt message. In response to the user's first operation on the first prompt information, the mobile phone 210 may perform step 1003. In response to the second operation of the user, the mobile phone 210 may no longer perform step 1001 to step 1003 within the fourth preset time period.
  • the mobile phone 210 may also send a second prompt message at the same time when the mobile phone 210 sends out the first prompt message.
  • the second prompt information may be a preset ring tone or vibration prompt.
  • Step 1001 to step 1003 are performed.
  • Step 1003 The mobile phone 210 turns on the reverse wireless charging function to wirelessly charge the smart watch 220.
  • the mobile phone 210 can turn on the reverse wireless charging function, and wirelessly charge the smart watch 220 according to the wireless charging protocol. It should be noted that, for step 1003, reference may be made to the detailed description of step 404, which is not repeated in the embodiment of the present application.
  • the embodiment of the application provides a wireless charging method for a mobile terminal.
  • the mobile phone 210 can periodically transmit an NFC detection signal; if the feedback signal of the NFC detection signal is detected within a second preset time period, the mobile phone 210 can automatically charge according to the wireless charging.
  • the agreement is for the smart watch 220 to charge wirelessly. In this way, automatic wireless charging between mobile terminals can be realized.
  • the mobile phone 210 can interact with the smart watch 220 to complete foreign object detection, coil position confirmation, and charging parameter negotiation.
  • the aforementioned foreign object detection, coil position confirmation, and charging parameter negotiation may be referred to as the second confirmation of wireless charging; whether the feedback signal of the NFC detection signal is received is referred to as the first determination of wireless charging.
  • automatic wireless charging between mobile terminals can be realized through the above-mentioned double judgment of the first judgment and the second confirmation.
  • step 1003 can be directly executed, and the smart watch is based on the wireless charging protocol. 220 wireless charging.
  • the NFC antenna of the mobile phone 210 and the wireless charging coil of the mobile phone 210 are not set at the same position.
  • the mobile phone 210 can send out the prompt message 1101 shown in FIG. 11 (such as The third prompt message).
  • the third prompt information is used to prompt the user to place the smart watch 220 at the position where the wireless charging coil of the mobile phone 210 is located. In this way, the mobile phone 210 can perform step 1003 to wirelessly charge the smart watch 220 according to the wireless charging protocol.
  • FIG. 11 only shows an example of the third prompt information.
  • the specific manner in which the mobile phone 210 sends out the third prompt message includes but is not limited to the manner shown in FIG. 11. Other ways for the mobile phone 210 to send out the third prompt message will not be repeated here in this embodiment of the application.
  • the mobile phone 210 in order to realize the wireless charging of the smart watch 220 by the mobile phone 210, the mobile phone 210 periodically sends a ping message, that is, a digital (digital) ping message, when performing step 404, step 904, and step 1003.
  • a ping message that is, a digital (digital) ping message
  • FIG. 12 it is a waveform diagram of the ping message sent by the mobile phone 210 measured through experiments.
  • the ping message is a periodic pulse signal.
  • the mobile phone 210 sends a ping message every 10s, that is, the transmission period T of the ping message is 10s.
  • the signal amplitude I (such as average current) of the ping message is about 30 milliamps (mA).
  • the energy consumed by the mobile phone 210 to transmit the ping message according to the parameters shown in FIG. 12 is converted into the power consumption of the battery of the mobile phone 210, which is specifically: the cumulative power consumption of 312 mA throughout the day (24 hours).
  • the power consumption of the battery of the mobile phone 210 is specifically: the cumulative power consumption of 312 mA throughout the day (24 hours).
  • it is measured through experiments that using the method of the embodiment of the present application, it takes 1 second from the mobile phone 210 to determine that the smart watch 220 is wirelessly charged through a wireless signal to the mobile phone 210 performing step 806 for the smart watch 220 to wirelessly charge.
  • the power consumption of wireless charging detection by the method of the embodiment of the present application is low, and the power consumption of wireless charging detection can be reduced. In addition, it takes less time to perform wireless charging detection, which can improve the efficiency of automatic wireless charging between mobile terminals.
  • the mobile terminal may include: a wireless charging coil, a wireless communication module, a memory, and one or more processors.
  • the wireless charging coil, wireless communication module, memory and processor are coupled.
  • the memory is used to store computer program code, and the computer program code includes computer instructions.
  • the processor executes the computer instructions, the mobile terminal can execute various functions or steps executed by the mobile phone 210 in the foregoing method embodiment.
  • the structure of the mobile terminal can refer to the structure of the mobile terminal 300 shown in FIG. 3.
  • the embodiment of the present application also provides a chip system.
  • the chip system includes at least one processor 1301 and at least one interface circuit 1302.
  • the processor 1301 and the interface circuit 1302 may be interconnected by wires.
  • the interface circuit 1302 can be used to receive signals from other devices (such as the memory of a mobile terminal).
  • the interface circuit 1302 may be used to send signals to other devices (such as the processor 1301).
  • the interface circuit 1302 may read instructions stored in the memory, and send the instructions to the processor 1301.
  • the mobile terminal such as the mobile terminal 300 shown in FIG.
  • the chip system may also include other discrete devices, which are not specifically limited in the embodiment of the present application.
  • the embodiment of the present application also provides a computer-readable storage medium, which includes computer instructions, when the computer instructions run on the above-mentioned mobile terminal (the mobile terminal 300 shown in FIG. 3), the The mobile terminal executes various functions or steps performed by the mobile phone in the above method embodiments.
  • the embodiments of the present application also provide a computer program product, which when the computer program product runs on a computer, causes the computer to execute each function or step performed by the mobile phone in the above method embodiment.
  • the disclosed device and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be divided. It can be combined or integrated into another device, or some features can be omitted or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate parts may or may not be physically separate.
  • the parts displayed as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed to multiple different places. . Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium.
  • the technical solutions of the embodiments of the present application are essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a software product, and the software product is stored in a storage medium. It includes several instructions to make a device (which may be a single-chip microcomputer, a chip, etc.) or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the foregoing storage media include: U disk, mobile hard disk, read only memory (read only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program codes.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Telephone Function (AREA)

Abstract

La présente invention concerne le domaine technique des communications et le domaine technique d'une charge sans fil et fournit un procédé de charge sans fil d'un terminal mobile et un terminal mobile qui peut réaliser une charge sans fil automatique de terminaux mobiles. Une solution spécifique comprend : un premier terminal mobile a pour fonction de recevoir une entrée de charge sans fil à partir d'autres dispositifs, au moyen d'une bobine de charge sans fil et d'une fonction de charge sans fil inverse, la fonction de charge sans fil inverse étant une fonction consistant pour le premier terminal mobile à charger sans fil d'autres terminaux mobiles au moyen de la bobine de charge sans fil. Le premier terminal mobile détecte un signal sans fil en provenance d'un second terminal mobile ; si le signal sans fil satisfait à une condition prédéfinie, le premier terminal mobile active automatiquement à la fonction de charge sans fil inverse pour charger sans fil le second terminal mobile.
PCT/CN2020/124775 2019-12-26 2020-10-29 Procédé de charge sans fil de terminal mobile et terminal mobile WO2021129128A1 (fr)

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CN114977349A (zh) * 2021-02-26 2022-08-30 北京小米移动软件有限公司 无线充电方法、电子设备及移动终端
CN113841317A (zh) * 2021-08-17 2021-12-24 北京小米移动软件有限公司 无线充电方法、装置、通信装置和计算机可读存储介质

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